请输入您要查询的英文单词:

 

单词 cerium
释义

cerium

/ˈsɪərɪəm /
noun [mass noun]
The chemical element of atomic number 58, a silvery-white metal. It is the most abundant of the lanthanide elements and is the main component of the alloy misch metal. (Symbol: Ce) Green light is also emitted from some lanthanide elements: lanthanum, cerium, and terbium....
  • Correlated systems include radioactive metals, such as plutonium, and compounds based on so-called rare earth elements and transition metals, such as cerium, ytterbium and copper.
  • That porous layer, which contains stabilized zirconia and small amounts of the metals ruthenium and cerium, chemically and cleanly converts the fuel to hydrogen.

Origin

Early 19th century: named after the asteroid Ceres, discovered shortly before.

Rhymes

随便看

 

英语词典包含243303条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2024/9/21 17:40:25